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• <br /> Table C.2.Historical Groundwater Concentration Data • <br /> SFPP,L.P.Holt Release Site,Holt California Is <br /> TPH-E <br /> SAMPLING (DRO) TPH-P ETHYL- TOTAL • <br /> WELL DATE Without Silica Gel (GRO) BENZENE TOLUENE BENZENE XYLENES COMMENTS <br /> (M/D/Y) (mg/L) (mg/L) (µg/L) (Ng/L) (µg/L) (µg/L) • <br /> Notes: . <br /> NA =Not analyzed • <br /> NS =Not sampled <br /> ND =Not detected at or above laboratory detection limit,as listed at end of table . <br /> (M/D/Y) =Month/Day/Year <br /> (pg/L) =micrograms per liter(parts per billion) . <br /> (mg/L) =milligrams per liter(parts per million) <br /> TPH-P(GRO) =Total Petroleum Hydrocarbons(Gasoline Range Organics)=C4-C13 . <br /> TPH-E(DRO) =Total Petroleum Hydrocarbons(Diesel Range Organics)=C13-C22 <br /> 0 =The reporting limit was raised due to sample foaming. <br /> * =Reporting limits were increased due to high concentrations of target analytes. . <br /> H =Reporting limit was increased due to the hydrocarbons present in the sample <br /> + =Reported diesel concentration may include some undifferentiated gasoline. • <br /> C =Reported concentration includes additional compounds uncharacteristic of common fuels and lubricants. <br /> A =Reporting limits were increased due to sample matrix interferences. <br /> ** =Reported diesel concentration may include some undifferentiated lighter-end hydrocarbons. <br /> *** =Reported diesel concentration may include some undifferentiated heavier-end hydrocarbons. • <br /> =Reported diesel concentration may include some undifferentiated lighter-end hydrocarbons <br /> K =DRO concentration may include lighter-end hydrocarbons(e.g.gasoline)that elute in the DRO range. • <br /> V =Reporting limits were increased due to high concentrations of target analytes. • <br /> X =Reporting limits increased due to SAMPLE matrix interferences. <br /> Q =DRO concentration may include contributions from lighter-end hydrocarbons(e.g.gasoline). . <br /> L =DRO concentration may include contributions from heavier-end hydrocarbons that elute in the DRO range. <br /> Z =DRO concentration may include contributions from lighter and heavier-end hydrocarbons that elute in the DRO range. • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> A <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> AX1001182027SCO Page 4 of • <br /> • <br />